CN113480192A

CN113480192A - Preparation method of glass shell, glass shell and electronic equipment

Info

Publication number: CN113480192A
Application number: CN202110732530.5A
Authority: CN
Inventors: 田彪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-10-08
Anticipated expiration: 2041-06-29
Also published as: CN113480192B

Abstract

The application provides a preparation method of a glass shell, the glass shell and electronic equipment. The preparation method of the glass shell comprises the following steps: providing a glass substrate; depositing an organic layer on the surface of the glass substrate to form a strengthened glass plate, wherein the toughness of the organic layer is greater than that of the glass substrate; and depositing a color layer on one side of the organic layer, which is far away from the glass substrate, so as to form a glass shell. The glass shell is prepared by the preparation method of the glass shell. The electronic equipment comprises a display screen and the glass shell. The preparation method of the glass shell can improve the strength of the prepared glass shell. The application provides a glass casing and electronic equipment has higher intensity, difficult breakage.

Description

Preparation method of glass shell, glass shell and electronic equipment

Technical Field

The application relates to the field of glass products, in particular to a preparation method of a glass shell, the glass shell and electronic equipment.

Background

In order to adapt to the performances of wireless signal transmission, wireless charging, beauty, hand feeling and the like of electronic equipment, the traditional metal shell is gradually replaced by a glass shell. The glass shell is formed by preparing a color film on a glass substrate, and the glass shell prepared in the related art has low strength and is easy to break.

Disclosure of Invention

The application provides a preparation method of a glass shell capable of improving strength, the glass shell with higher strength and low possibility of breaking and electronic equipment.

In one aspect, the present application provides a method of making a glass housing, comprising:

providing a glass substrate;

depositing an organic layer on the surface of the glass substrate to form a strengthened glass plate, wherein the toughness of the organic layer is greater than that of the glass substrate;

and depositing a color layer on one side of the organic layer, which is far away from the glass substrate, so as to form a glass shell.

On the other hand, the application also provides a glass shell prepared by the preparation method of the glass shell.

In another aspect, the present application further provides an electronic device, which includes a display screen and the glass housing, wherein the display screen is connected to the glass housing.

The application provides a preparation method of glass casing, organic layer at the surface deposition of glass substrate, because the toughness of organic layer is greater than the toughness of glass substrate, consequently when deposit the color layer or use, at least partial effort can be absorbed to the organic layer, weaken the inside stress that produces of glass substrate, and the organic layer makes color layer and glass substrate interval can avoid the color layer and the glass substrate direct contact produced the structural damage of chemical reaction and the glass substrate that leads to, thereby make the glass casing of preparation have higher intensity, difficult fracture.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below.

FIG. 1 is a schematic flow chart illustrating a method for manufacturing a glass housing according to an embodiment of the present disclosure;

FIG. 2 is a schematic flow chart of a method for manufacturing a glass housing according to the second embodiment of the present application;

FIG. 3 is a schematic flow chart of step 203 of the method for manufacturing a glass housing shown in FIG. 2;

FIG. 4 is a schematic flow chart of step 204 of the method for making a glass housing shown in FIG. 2;

FIG. 5 is a schematic view of a manufacturing tool in the method of manufacturing the glass housing shown in FIG. 2;

fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

FIG. 7 is an exploded view of the electronic device of FIG. 6;

FIG. 8 is a schematic cross-sectional view of the glass housing of the electronic device shown in FIG. 6 including a color layer, an organic layer, and a glass substrate;

fig. 9 is a schematic cross-sectional view of the glass housing of the electronic device shown in fig. 6 including a protective layer, a color layer, an organic layer, and a glass substrate.

Detailed Description

Because the housing made of metal material can shield or interfere functions of electronic equipment such as wireless communication, wireless charging and the like, the housing of the electronic equipment (for example, a rear cover of a mobile phone) is made of glass. In order to realize the gorgeous appearance effect of the glass shell, a film layer with a certain color is formed on the surface. However, when the film is directly coated on the surface of the glass, the active medium (such as water, acid, alkali and certain salts) in the film can penetrate into the glass or can chemically react with the glass, so as to damage the structure of the glass, and finally, the strength of the manufactured glass shell is low and the glass shell is easy to break. Therefore, the application provides a preparation method of the glass shell capable of improving the strength, the glass shell with higher strength and difficult breakage and the electronic equipment.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments listed in the present application may be appropriately combined with each other.

As shown in fig. 1, fig. 1 is a schematic flow chart of a method for manufacturing a glass housing according to an embodiment of the present disclosure. In this embodiment, the method for manufacturing the glass housing includes at least the

following steps

101, 102, and 103.

Step 101: a glass substrate is provided.

The glass substrate is a substrate with a certain shape and size made of glass materials. The glass substrate may be a 2D glass substrate, a 2.5D glass substrate, a 3D glass substrate, or the like. The 2D glass substrate is a pure plane glass substrate without any arc design. The 2.5D glass substrate is a glass substrate with a plane in the middle and an arc-shaped design at the edge. The 3D glass substrate is a glass substrate with arc-shaped design at the middle and the edge. The provision of a glass substrate as described in the following examples without particular description is exemplified to provide a 3D glass substrate. The 3D glass substrate may be made using a hot bending process. It will be appreciated that in other embodiments, providing a glass substrate may be providing a 2D glass substrate, or alternatively, providing a 2.5D glass substrate, etc. The 2D glass substrate may be fabricated by CNC or the like processes. The 2.5D glass substrate can be manufactured by processing the edge of the 2D glass substrate after the 2D glass substrate is manufactured by processes such as CNC.

Step 102: and depositing an organic layer on the surface of the glass substrate to form a strengthened glass plate, wherein the toughness of the organic layer is greater than that of the glass substrate.

The glass substrate manufactured by the method can be used as a rear cover of electronic equipment such as a mobile phone. Therefore, the surface of the glass substrate according to the embodiment of the present application may be an inner surface of the glass substrate, i.e., a side of the glass substrate facing the inside of the electronic device. Of course, in other embodiments, the depositing the organic layer on the surface of the glass substrate may also be depositing the organic layer on the outer surface and/or the side of the glass substrate.

The organic layer is an organic material layer. Alternatively, the organic material may be fiber, rubber, plastic, or the like. In the embodiment of the present application, the organic material is exemplified by resin. The organic material has high chemical stability and is not easy to generate chemical reaction with the glass substrate. It can be understood that, by depositing the organic layer on the surface of the glass substrate, the material of the color layer can be prevented from contacting the glass substrate to generate a chemical reaction, and the structural damage of the glass substrate can be reduced, thereby protecting the strength of the glass substrate.

The toughness of the organic layer is greater than that of the glass substrate. In other words, the organic layer has a better ability to absorb energy during plastic deformation and fracture than the glass substrate, i.e., the organic layer has a lower probability of brittle fracture than the glass substrate. It is understood that by depositing the organic layer on the surface of the glass substrate, at least a portion of the force applied by the organic layer during the deposition of the color layer and during the use of the glass envelope can be absorbed to reduce the stress generated inside the glass substrate, thereby improving the strength of the glass envelope formed. It is understood that the strength of the strengthened glass plate is greater than that of the glass substrate, i.e., the strengthened glass plate is less likely to break than the glass substrate.

The organic layer is deposited on the surface of the glass substrate by physical vapor deposition (for example, one or more of vacuum evaporation, sputtering and ion plating). Of course, in other embodiments, the organic layer may be deposited on the surface of the glass substrate by spraying. Compared with the mode of adhering an organic film on the surface of the glass substrate, the mode of depositing the organic layer on the surface of the glass substrate can improve the connection tightness between the organic layer and the glass substrate and avoid dislocation and separation of the organic layer and the glass substrate. Meanwhile, compared with the mode of adhering an organic film on the surface of the glass substrate, the mode of depositing the organic layer on the surface of the glass substrate is more tightly connected, so that the glass substrate has higher integrity and strength, and the possibility of breaking the glass shell is further reduced.

Step 103: and depositing a color layer on one side of the organic layer, which is far away from the glass substrate, so as to form a glass shell.

The color layer can be a film layer with one or more colors or a film layer with gradually changed colors. The color layer can be a film formed by one or more materials of metal, metal oxide, non-metal oxide and the like. It is understood that the glass housing prepared in this embodiment includes a color layer, an organic layer, and a glass substrate, which are sequentially stacked.

The color layer is deposited on the side of the organic layer, which faces away from the glass substrate, by physical vapor deposition (for example, one or more of vacuum evaporation, sputtering and ion plating). Of course, in other embodiments, the deposition of the color layer on the side of the organic layer facing away from the glass substrate may be a spray deposition of the color layer on the side of the organic layer facing away from the glass substrate. In the following embodiments, the side of the organic layer facing away from the glass substrate may also be referred to as the surface of the organic layer. Compared with the mode of adhering an organic film on the surface of the organic layer, the mode of depositing the color layer on the surface of the organic layer can improve the connection tightness between the color layer and the organic layer, and avoid dislocation and separation of the organic layer and the color layer. Meanwhile, the arrangement of the bonding layer can be reduced, the integrity of the glass shell is improved, and the thickness of the glass shell is reduced.

As shown in fig. 2, fig. 2 is a schematic flow chart of a method for manufacturing a glass housing according to a second embodiment of the present application. In this embodiment, the method for manufacturing a glass housing includes at least step 201, step 202, step 203, step 204, and step 205.

Step 201: a glass substrate is provided.

Step 201 in this embodiment is the same as step 101 in the above embodiment, and reference may be made to step 101 specifically, which is not described herein again.

Step 202: and arranging the glass substrate on the movable jig.

The movable jig can be a movable jig or a rotary jig. The glass substrate can be directly arranged on the movable jig, and can also be arranged on the movable jig through a clamping tool. The glass substrate and the movable fixture can be relatively fixed, or the glass substrate can move or rotate on the movable fixture. In this embodiment, the movable jig can be disposed in the coating chamber or fixed to the coating chamber when in use. Optionally, the movable jig is a film-coating umbrella stand.

Step 203: and enabling the movable jig to move at a preset speed, and depositing an organic layer on the surface of the glass substrate in a vacuum evaporation mode.

When the film coating chamber is in a vacuum state, the organic material is heated and evaporated by the evaporator and gasified, and the organic particles fly to the surface of the glass substrate and are condensed into the organic layer. Wherein, the evaporator can be an electron gun, a laser gun, etc. The temperature at which the evaporator heats and evaporates the organic material may be between 20 deg. and 80 deg.. In this embodiment, the organic layer is deposited on the surface of the glass substrate by vacuum evaporation, so that the thickness of the organic layer is small. Wherein the organic layer may have a thickness of less than 200 nm. However, the thickness of the organic layer deposited by spraying is basically greater than 200nm, and it is difficult to realize the organic layer with the thickness less than 200nm, and when the prepared glass shell is used as a mobile phone rear cover, a higher optical effect needs to be ensured, and corresponding spraying and drying equipment is expensive. Therefore, the present embodiment employs a vacuum evaporation method to deposit the organic layer on the surface of the glass substrate, which can reduce the cost and improve the yield.

Optionally, the movable jig (which may be a film-coated umbrella frame) is rotated at a predetermined speed, and at this time, the movable jig drives the glass substrate to rotate because the glass substrate is mounted on the movable jig. The application does not limit the movement speed of the movable jig. The movable jig rotates to drive the glass substrate to rotate, and the distance between different areas of the glass substrate and the outlet of the evaporator can be changed, so that the distances from the outlet of the evaporator to the different areas of the glass substrate are approximately the same, the deposited organic layer is uniform, and the organic layer with approximately consistent thickness can be formed on the surface of the glass substrate. Wherein, the glass substrate can revolve around at the export of evaporimeter in rotatory process, simultaneously on the rotation of activity tool.

In one embodiment, as shown in FIG. 3, step 203 includes, but is not limited to including, step 230 and step 231.

Step 230: and carrying out multiple times of vacuum evaporation on the glass substrate, wherein a sub spacing layer is deposited on the surface of the glass substrate by each time of vacuum evaporation, and the organic layer is formed by the plurality of sub spacing layers deposited on the surface of the glass substrate.

The number of times of vacuum evaporation and the thickness of the sub spacer layer are not limited in the present application. Optionally, the glass substrate is subjected to vacuum evaporation for 2-6 times, and a sub-spacing layer with a thickness of 20-40 nm is deposited on the surface of the glass substrate by vacuum evaporation each time.

For example: and carrying out three times of vacuum evaporation on the glass substrate, wherein each time of vacuum evaporation is used for depositing a sub spacing layer on the surface of the glass substrate, and three times of vacuum evaporation is used for depositing three sub spacing layers on the surface of the glass substrate. It is understood that in this embodiment, the organic layer includes three sub-spacer layers. Wherein, the thicknesses of the three sub-spacing layers can be the same or different.

Step 231: and in the process of adjacent vacuum evaporation, keeping the sub spacing layer in a vacuum state for a preset time.

It can be understood that, in the above example of performing vacuum evaporation three times, after performing the first vacuum evaporation, the sub-spacer layer of the first layer may be kept in a vacuum state for a predetermined time, and then performing the second vacuum evaporation; or after the second vacuum evaporation deposition, keeping the sub-spacing layer of the second layer in a vacuum state for a preset time, and then carrying out the third vacuum evaporation; or after the first vacuum evaporation, keeping the sub-spacing layer of the first layer in a vacuum state for a preset time, then carrying out the second vacuum evaporation, and continuing to keep the sub-spacing layer of the second layer in the vacuum state for the preset time, then carrying out the third vacuum evaporation.

The preset time is not limited in the present application. Optionally, the preset time is 40s to 80 s.

Further, step 203 in the method for manufacturing a glass housing provided by this embodiment may further include step 232.

Step 232: and cleaning the surface of the sub spacing layer in the process of adjacent vacuum evaporation.

The surface of the sub-spacer layer can be understood as the side of the sub-spacer layer facing away from the glass substrate, or the exposed surfaces of the sub-spacer layer are the surfaces of the sub-spacer layer. The cleaning of the surface of the deposited sub-spacing layer comprises cleaning the surface of each deposited sub-spacing layer, and also can clean the surface of one or more sub-spacing layers in the deposited multi-layer sub-spacing layer. It will be appreciated that in the above example where three sub-spacer layers are deposited, the surface of the first sub-spacer layer may be cleaned prior to depositing the second sub-spacer layer, the surface of the second sub-spacer layer may be cleaned prior to depositing the third sub-spacer layer, or both the surface of the first sub-spacer layer and the surface of the second sub-spacer layer may be cleaned prior to depositing the second sub-spacer layer.

Step 232 and step 231 may be performed simultaneously, or step 231 may be performed first and then step 232 is performed, or step 232 may be performed first and then step 231 is performed.

In this embodiment, the strength of the formed strengthened glass plate can be enhanced by forming a plurality of sub-spacers by deposition a plurality of times, and forming an organic layer by the plurality of sub-spacers in a manner that the organic layer has the same thickness as that of the organic layer deposited at one time. It will be appreciated that the thickness of the glass envelope can be reduced by forming multiple sub-spacer layers by multiple depositions, with the thickness of the organic layer required for the formation of the organic layers by the multiple sub-spacer layers being less, given the same strength of the strengthened glass sheet.

In one embodiment, after an organic layer with a thickness of 100nm is deposited on the surface of the glass substrate by vacuum evaporation once, a color layer with a thickness of 500nm is vacuum evaporated, and the ball drop strength of the obtained glass shell is tested to be 32 g. And depositing a sub-spacing layer with the thickness of 20nm on the surface of the glass substrate by four times of vacuum evaporation, keeping the sub-spacing layer in a vacuum state for 60s in the process of each adjacent time of vacuum evaporation, and then performing vacuum evaporation on a color layer with the thickness of 500nm, wherein the ball drop strength of the glass shell obtained by testing is also 32 g.

Step 204: and depositing a color layer on one side of the organic layer, which is far away from the glass substrate, in a vacuum evaporation mode.

The method is characterized in that a color layer is deposited on one side of the organic layer, which is far away from the glass substrate, in a vacuum state of the film coating chamber in a vacuum evaporation mode, an evaporator is used for heating and evaporating color materials and gasifying the color materials, and color particles fly to the surface of the organic layer to be condensed into the color layer. The temperature at which the evaporator heats the evaporated color material may be between 20 deg. and 80 deg.. In the embodiment, the replacement of the preparation tool can be reduced by depositing the organic layer and the color layer in a vacuum evaporation mode, so that the preparation efficiency of the glass shell is improved. Wherein, the thickness of the color layer can be between 200nm and 1000 nm. The color layer may be formed by one-time evaporation or may be formed by multiple times of evaporation.

In one embodiment, as shown in FIG. 4, step 204 includes, but is not limited to including, step 240 and step 241.

Step 240: and covering the correction plate on one side of the organic layer, which is far away from the glass substrate.

As shown in fig. 5, the correction plate 4 may be disposed on the rotating fixture or may be disposed independently of the rotating fixture. In the present embodiment, the correction plate 4 is movably disposed on the movable jig. The correcting plate 4 can be turned or moved relative to the tempered glass plate 25 mounted on the movable jig. A color-graded colored layer can be formed on the tempered glass plate 25 by providing the correction plate 4.

Step 241: and enabling the movable jig to move at a first preset speed, enabling the correction plate to move at a second preset speed, gradually exposing the surface of the organic layer, and depositing different color parts on the exposed surface of the organic layer in sequence in a vacuum evaporation mode to enable the color part of one side, deviating from the glass substrate, of the organic layer to form a color layer.

In this embodiment, the moving speed of the movable jig and the moving speed of the correction plate are not limited. The movable jig can rotate at a first preset speed to drive the tempered glass plate and the correction plate to rotate. The correcting plate can be overturned relative to the tempered glass plate at a second preset speed so as to gradually expose different areas of the surface of the organic layer, namely areas to be deposited. And depositing different color parts on the exposed area to be deposited in sequence by adopting a vacuum evaporation mode. It is understood that the color of the tint part deposited on different areas of the prepared glass shell can be different. Optionally, the color of the color layer gradually changes along the length direction of the glass substrate, or the color of the color layer gradually changes along the width direction of the glass substrate.

In one embodiment, the initial progression of the color layer of the glass shell is located at 1/3 from top to bottom of the glass shell. In another embodiment, the starting fade location for the color layer of the glass shell is located at 1/2 from left to right of the glass shell. The color of the color layer is gradually changed in sequence, and the color part with the thickness gradually decreased or gradually increased is formed on the surface of the organic layer. For example: the gradation color layer is realized by making the thickness of the color portion decrease in an equal proportion. When the thickness of the color portion is 100% (set to 500nm), the color of the color portion is yellow. When the thickness of the color portion is reduced to 80% (400nm), the color of the color portion is blue.

In the present embodiment, by providing the correction plate so that the correction plate blocks the organic layer, a glass case with a gradually changing color can be formed. The tempered glass plate and the correction plate are arranged on the rotary jig, so that the distances between different areas of the tempered glass plate and the outlet of the evaporator can be changed in the process of forming the glass shell with gradually changed colors, the deposited color layer is more uniform, and the volume of the preparation tool can be reduced compared with the mode that the correction plate and the movable jig are arranged independently.

Step 205: and forming a protective layer on one side of the color layer, which is far away from the organic layer.

The protective layer may be an ink layer, a formed film, or the like. It is understood that the glass housing prepared by the embodiment includes a protective layer, a color layer, an organic layer and a glass substrate which are sequentially stacked. The protective layer is formed on the side of the color layer away from the organic layer by one of physical vapor deposition (such as one or more of vacuum evaporation, sputtering and ion plating), spraying, attaching, printing and the like. The protective layer may isolate the color layer from the outside, thereby preventing the color layer from being oxidized, aged, scratched, discolored, etc.

In addition, as shown in fig. 6, an electronic device 100 is further provided in the embodiments of the present application. The electronic device 100 may be a mobile phone, a tablet computer, an e-reader, an electronic display screen, a notebook computer, a media player, a watch, or the like. The electronic device 100 includes a display screen 1 and a glass housing 2. The embodiment of the application takes a mobile phone as an example.

The display screen 1 is connected to a glass housing 2. The display screen 1 and the glass housing 2 may be directly connected or indirectly connected. In one embodiment, as shown in fig. 7, the glass housing 2 serves as a back cover of the mobile phone. The electronic device 100 further comprises a middle frame 3 connected between the display screen 1 and the glass housing 2. It can be understood that the display screen 1 is connected with the glass shell 2 through the middle frame 3.

The glass housing 2 is prepared by the method for preparing the glass housing 2 according to any of the above embodiments.

In one embodiment, as shown in fig. 8, the glass housing 2 includes a color layer 21, an organic layer 22 and a glass substrate 23 stacked in sequence.

In another embodiment, referring to fig. 7 and 9, the glass housing 2 includes a protective layer 20, a color layer 21, an organic layer 22, and a glass substrate 23 sequentially stacked. The protective layer 20 is located on the side close to the display screen 1 and the glass substrate 23 is located on the side far from the display screen 1.

The protective layer 20 may be ink, a light shielding film, or the like.

The color layer 21 may include one or more color film layers, or may be a color gradient film layer. The thickness of the color layer 21 may be between 200nm and 1000 nm.

The toughness of the organic layer 22 is greater than that of the glass substrate 23. The organic layer 22 is transparent. The material of the organic layer 22 may be resin. The thickness of the organic layer 22 may be between 100nm and 200 nm.

The glass substrate 23 may be one of a 2D glass substrate, a 2.5D glass substrate, and a 3D glass substrate. The organic layer 22 and the glass substrate 23 form a strengthened glass plate 24.

The application provides a glass housing 2 is because set up organic layer 22 between glass substrate 23 and the color layer 21, and the toughness of organic layer 22 is greater than glass substrate 23's toughness, but absorbed external force forms to strengthen and protect glass substrate 23, and organic layer 22 can block the chemical reaction that color layer 21 and glass substrate 23 produced, reduces the structural damage of glass substrate 23 self, therefore glass housing 2's bulk strength is higher, difficult broken.

The foregoing is a partial description of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. A method of making a glass housing, comprising:

providing a glass substrate;

2. The method of claim 1, wherein depositing an organic layer on the surface of the glass substrate comprises:

arranging the glass substrate on a movable jig;

and enabling the movable jig to move at a preset speed, and depositing an organic layer on the surface of the glass substrate in a vacuum evaporation mode.

3. The method according to claim 2, wherein the depositing the organic layer on the surface of the glass substrate by vacuum evaporation comprises:

carrying out multiple times of vacuum evaporation on the glass substrate, wherein a sub spacing layer is deposited on the surface of the glass substrate by each time of vacuum evaporation, and the multiple sub spacing layers deposited on the surface of the glass substrate form an organic layer;

and in the process of adjacent vacuum evaporation, keeping the sub spacing layer in a vacuum state for a preset time.

4. The method of claim 3, wherein the vacuum evaporating the glass substrate a plurality of times, each vacuum evaporating depositing a sub-spacer layer on the surface of the glass substrate, comprises:

and carrying out vacuum evaporation on the glass substrate for 2-6 times, wherein a sub spacing layer with the thickness of 20-40 nm is deposited on the surface of the glass substrate by vacuum evaporation each time.

5. The method of claim 3, wherein after the plurality of vacuum evaporations to the glass substrate, each vacuum evaporation depositing a sub-spacer layer on the surface of the glass substrate, the method further comprises:

and cleaning the surface of the sub spacing layer in the process of adjacent vacuum evaporation.

6. The method according to claim 3, wherein the preset time is 40s to 80 s.

7. The method of claim 2, wherein depositing the color layer on a side of the organic layer facing away from the glass substrate comprises:

covering a correction plate on one side of the organic layer, which is far away from the glass substrate;

and enabling the movable jig to move at a first preset speed, enabling the correction plate to move at a second preset speed, gradually exposing the surface of the organic layer, and depositing different color parts on the exposed surface of the organic layer in sequence in a vacuum evaporation mode to enable the color part of one side, deviating from the glass substrate, of the organic layer to form a color layer.

8. The method according to any one of claims 1 to 7, wherein after depositing the color layer on the side of the organic layer facing away from the glass substrate, the method further comprises:

and forming a protective layer on one side of the color layer, which is far away from the organic layer.

9. A glass housing prepared by the method of any one of claims 1 to 8.

10. An electronic device comprising a glass housing as claimed in claim 9 and a display screen, the display screen being attached to the glass housing.